| Title | Morphology, Sediment Microbial Analysis, and Species Distribution Modeling of a New Offshore Population of Ghost Shrimp (Neotrypaea sp.) |
| Publication Type | Thesis |
| Year of Publication | 2022 |
| Authors | Hardisty, Sarah |
| Academic Department | Dept. of Integrative Biology |
| Degree | M.S. |
| Pagination | 81 p. |
| Date Published | 2022 |
| University | Oregon State University |
| City | Corvallis, Or. |
| Type of Work | Masters Thesis |
| Call Number | OSU Libraries: Digital Open Access |
| Keywords | bacteria, Ghost shrimp = Neotrypaea californiensis (Callianassa californiensis), Giant ghost shrimp = Neotrypaea gigas, habitats, Microbiome, morphology, Nehalem River, Nestucca River, sediments, taxonomy, water temperature, Yaquina Bay |
| Notes | Ghost shrimp (Neotrypaea spp.) are typically seen as burrowing species in estuaries. In 2019, after years of abnormally warm offshore waters, a population of ghost shrimp was discovered about 7 miles offshore of Newport, Oregon. The author of this Master’s thesis attempts to answer some questions about the newly revealed enclave. Was the new population a new species? Examination revealed that the offshore ghost shrimp closely resembled the giant ghost shrimp, which is found in Yaquina Bay, except for the eyestalk. Could the sediment microbial communities in the new deep-water habitat support the shrimp? Researchers learned that, “Bacteria of the genus Shewanella, which have been shown to induce oyster and mussel settlement and metamorphosis, were found in both the estuary and offshore locations and in five times greater abundance with Neotrypaea than without” (from the Abstract). Finally, the author attempted to predict where other offshore populations of ghost shrimp might be found, and found clusters off Nehalem and Nestucca estuaries. The major professor was Sarah K. Henkel. |
| URL | https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/s4655q555 |
